Metal-panel construction



April 14, 931- M. s. HART ET AL METAL PANEL CONSTRUCTION Filed Sept. 11, 1950 INVENTOR Patented Apr. 14, 1931 UNITED STATES PATENT. ()VFFICE MAXWELL S. HART AND GUSTAV H. ANDERSON, OF NEW BRITAIN, CONNECTICUT, AS-

SIGNORS TO THE HART & I-IUTCHINSON COMPANY, OF NEW BRITAIN, CONNECTICUT,

A CORPORATION OF CONNECTICUT METAL-PANEL CONSTRUCTION Application filed September 11, 1930. Serial No. 481,166.

This invention relates to metal panel construction, and more particularly to an improved form of metal panel for use in doors, partitions and the like.

One object of the present invention is to provide a metal panel of the above nature constructed from two opposed flat pan sections connected together at their edges.

A further object is to provide a metal panel of the above nature in which the side pan sections are provided with flanges which are bent inwardly into line contact throughout the entire periphery of the panel and also having outwardly inclined flanges bent into flat contact at spaced intervals and integrally connected at said contact points by spot welding.

A further object is to provide a metal panel of the above nature in which the joint and edge flanges thereof are covered over by an ornamental concealing molding strip.

A further object is to providea metal panel of the above nature which will be simple and rigid in construction, inexpensive to manufacture, easy to assemble, compact, ornamental in appearance, very efiicient and durable in use.

Withthese and other objects in View, there has been illustrated on the accompanying drawing, one form in which the invention may be conveniently embodied in practice.

In the drawing, Fig. 1 represents a perspective view of a completed door panel embodying the invention.

Fig. 2 is a fragmentary perspective view upon an enlarged scale, of the upper left-hand corner of the door panel shown in Fig. 1.

Fig. 3 is a top view of one end of said door panel with the concealing molding removed, the right-hand part of said figure being shown in section.

Fig. 4 is a transverse sectional view of the left-hand portion of the door shown in Fig. 3, prior to the assembly of the concealing molding, the section being taken through one of the contacting spot-welded portions of the inclined flanges.

Referring now to the drawings in Which parts'throughout the several views, the numerals 10 and 11 indicate a pair of opposed shallow pan sections having inwardly extending flanges 12 and 13 on all four edges thereof, said flanges l2 and 13 being adapted to have line contact with each other. Provision is also made of diverging inclined flanges ll and 15 integrally connected with the flanges 12 and 13 along their entire periphery and forming an angle of substantially 90 degrees with one another.

In order to connect the pan sections 10 and 11 integrally together and thus avoid the possibility of relative lateral shifting or weaving which was common with previous doors of this general nature where the separate halves thereof were not so joined, the inclined flanges 14 and 15 are bent inwardly into flat contact at spaced intervals 16 and 17 and permanently joined together by spotwelds 18.

- In order to cover the joint at the edges of the door panel, provision is made of four concealing molding strips 19- each of which'has a curved outer surface 20 and a pair of inwardly extending inclined flanges 21 and 22 adapted to resiliently engage the flanges 14 and 15 over which they are adapted to slide.

The ends 23 of the molding strips 19 are as in this case the framework in which the panel is fitted covers the joint between the two halves thereof. When so used, however, the angle between the flanges 12 and 13 on the edges of the pan sections 10 and 11 will be made somewhat less than degrees so as toavoid cutting too deeply into the framework surrounding the edge joints.

The interior of the door panel may also be provided if desired with an interior filling block 24 of any suitable sound-deadening or stiffening material, as shown in Fig. 4.

It will be understood that any suitable hardware, trimmings, or fittings may be attached to .the panel according to the desires of the user.

' contact at spaced-sections,

While there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only and that the invention is not to be limited to the specific disclosures, but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a panel, a pair of flat metal pans having alined inwardly extending edge flanges, said flanges having line contact with each other, and outwardly extending flanges integrally joined together at spaced intervals.

2. In a panel, a pair of metal pans having alined inwardly extending edge flanges, said flanges havingline contact with each other, and outwardly extending inclined flanges inte'grally joined together at spaced intervals.

3. In a panel, a pair of metal pans having alined inwardly extending edge flanges, said flanges having line contact with each other, andoutwardly extending flanges spot-welded together at spaced intervals.

4. In a panel for doors, partitions and the like, a pair of opposed metal pans having abutting edge flanges, inclined outwardly extending flanges integral with said abutting flanges, said inclined flanges bent into flat contact at spaced sections, and means for rigidly connecting said sections together.

- 5. In a panel for doors, partitions and the like, a pairof opposed metal pans having abutting edge flanges, inclined outwardly I extending flanges integral with said abutting flanges, said inclined flanges bent into flat contact at spaced sections, and means for rigidly connecting said sections together by spot-welding.

6. In a panel, a pair of metal pans having alined inwardly. extending ed e flanges, said flanges having line contact with each other, and outwardly extending inclined flanges in tegrally joined together atspaced intervals, the edges of said able over said outwardly extending flanges.

7. In a panel for doors, partitions and the abutting edge flanges, inclined outwardly extending flanges inte al with said abutting flanges, said incline flanges bent intoflat and means for rigldly connecting said {sections together, the edges of said panel being covered by a con-' cealmg strip interlocking with said inclined flanges. 1

8. In a panel, a pair of metal pans having almed inwardly extending edge flanges, said. flanges having line contact w1th each other,

and outwardly extending flanges integrally j oined, together at spaced intervals, the edges of said panel being covered by a concealing,

panel bein covered by a concealing molding strip sli like, a pair of opposed metal pans having 

